DE50112745D1 - COMPACT ELECTRODELESS LOW-PRESSURE GAS DISCHARGE LAMP WITH INCREASED LIFE - Google Patents

COMPACT ELECTRODELESS LOW-PRESSURE GAS DISCHARGE LAMP WITH INCREASED LIFE

Info

Publication number
DE50112745D1
DE50112745D1 DE50112745T DE50112745T DE50112745D1 DE 50112745 D1 DE50112745 D1 DE 50112745D1 DE 50112745 T DE50112745 T DE 50112745T DE 50112745 T DE50112745 T DE 50112745T DE 50112745 D1 DE50112745 D1 DE 50112745D1
Authority
DE
Germany
Prior art keywords
gas discharge
shaped
discharge lamp
receptacle
pressure gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE50112745T
Other languages
German (de)
Inventor
Walter Tews
Gundula Roth
Jens Klimke
Conrad Schimke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merck Patent GmbH
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE50112745D1 publication Critical patent/DE50112745D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
    • H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
    • H01J65/042—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field
    • H01J65/048—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels by an external electromagnetic field the field being produced by using an excitation coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Luminescent Compositions (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

The invention relates to a compact, electrodeless, low pressure gas discharge lamp which is characterised by a long shelf life and high light efficiency and light density. The inventive gas discharge lamp comprises a ball-shaped, ring-shaped, pear-shaped or ellipsoidal glass body which is used as a gas discharge receptacle, on the inner gas surface of which a layer containing at least two luminous substances is applied. The side of the glass bulb facing the gas discharge and/or the layer containing luminous matter and exposed to the gas discharge in the discharge receptacle are coated with a chemically, largely inert protective layer consisting of an oxide. The electrical energy is introduced into the discharge receptacle in an inductive manner using a ring-shaped closed ferrite core, preferably MnZn soft ferrite, which is partially located inside the discharge receptacle and is provided with a primary winding which is connected to an RF source in the frequency region of between 100 kHz and 500 kHz by means of a resonant LC coupling circuit. Part of the ring-shaped ferrite core is introduced into the discharge receptacle by means of a vacuum-tight passage which is arranged in the glass body. The part of the ferrite core, the primary winding and the coupled RF source in the form of an electronic push-pull circuit are arranged in the base of the lamp. The luminous substances used are derived from, for example, the compounds gadolinium-magnesium pentaborate silicate, alkaline earth aluminate, cerium-magnesium aluminate et al., and are activated by ions of rare earth elements and/or manganese, lead, antimony, tin and bismuth. The inventive compact, electrodeless, low pressure gas discharge lamp is used as a light source for general and communal lighting, inside and outside, in the fields of medicine and cosmetics.
DE50112745T 2000-11-27 2001-11-26 COMPACT ELECTRODELESS LOW-PRESSURE GAS DISCHARGE LAMP WITH INCREASED LIFE Expired - Lifetime DE50112745D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10058852A DE10058852A1 (en) 2000-11-27 2000-11-27 Compact, electrodeless, low-pressure gas discharge lamp with increased service life
PCT/DE2001/004482 WO2002043107A1 (en) 2000-11-27 2001-11-26 Compact, electrodeless, low pressure gas discharge lamp having an extended shelf life

Publications (1)

Publication Number Publication Date
DE50112745D1 true DE50112745D1 (en) 2007-08-30

Family

ID=7664841

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10058852A Withdrawn DE10058852A1 (en) 2000-11-27 2000-11-27 Compact, electrodeless, low-pressure gas discharge lamp with increased service life
DE50112745T Expired - Lifetime DE50112745D1 (en) 2000-11-27 2001-11-26 COMPACT ELECTRODELESS LOW-PRESSURE GAS DISCHARGE LAMP WITH INCREASED LIFE

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10058852A Withdrawn DE10058852A1 (en) 2000-11-27 2000-11-27 Compact, electrodeless, low-pressure gas discharge lamp with increased service life

Country Status (6)

Country Link
EP (1) EP1340243B1 (en)
AT (1) ATE367648T1 (en)
AU (1) AU2002224741A1 (en)
DE (2) DE10058852A1 (en)
RU (1) RU2003119071A (en)
WO (1) WO2002043107A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004018590A1 (en) 2004-04-16 2005-11-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Fluorescent composition for a low-pressure discharge lamp with a very high color temperature
DE102005050306B3 (en) * 2005-10-20 2007-03-15 Minebea Co., Ltd. Electrode-less high frequency low-pressure gas discharge lamp has soft magnetic core for inductive conversion with exciter winding and discharge unit
KR100706184B1 (en) 2005-12-26 2007-04-12 주식회사 디엠에스 Fluorescent lamp and manufacturing method thereof

Family Cites Families (32)

* Cited by examiner, † Cited by third party
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US3141990A (en) * 1960-04-06 1964-07-21 Sylvania Electric Prod Fluorescent lamp having a tio2 coating on the inner surface of the bulb
US3521120A (en) * 1968-03-20 1970-07-21 Gen Electric High frequency electrodeless fluorescent lamp assembly
NL169533C (en) * 1971-08-28 1982-07-16 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
US3987335A (en) * 1975-01-20 1976-10-19 General Electric Company Electrodeless fluorescent lamp bulb RF power energized through magnetic core located partially within gas discharge space
DE2601664C3 (en) * 1975-01-20 1980-07-24 General Electric Co., Schenectady, N.Y. (V.St.A.) Fluorescent lamp
DE2659859C2 (en) * 1975-01-20 1985-08-01 General Electric Co., Schenectady, N.Y. Device for maintaining an electrical discharge
US4010400A (en) * 1975-08-13 1977-03-01 Hollister Donald D Light generation by an electrodeless fluorescent lamp
DE2826091A1 (en) * 1978-06-14 1980-01-03 Patra Patent Treuhand MERCURY VAPOR LOW-PRESSURE DISCHARGE LAMP FOR RADIATION PURPOSES
US4298828A (en) * 1979-02-21 1981-11-03 Westinghouse Electric Corp. High frequency electrodeless lamp having a gapped magnetic core and method
NL7901897A (en) * 1979-03-09 1980-09-11 Philips Nv ELECTRESSLESS GAS DISCHARGE LAMP.
US4357559A (en) * 1980-03-17 1982-11-02 General Electric Company Fluorescent lamp utilizing phosphor combination
NL8202778A (en) * 1982-07-09 1984-02-01 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
JPH0619975B2 (en) * 1984-04-18 1994-03-16 松下電子工業株式会社 Fluorescent lamp emitting light in three wavelength range
NL8500738A (en) * 1985-03-14 1986-10-01 Philips Nv ELECTRESSLESS LOW PRESSURE DISCHARGE LAMP.
NL8500736A (en) * 1985-03-14 1986-10-01 Philips Nv ELECTRESSLESS LOW PRESSURE DISCHARGE LAMP.
SE458365B (en) * 1987-04-27 1989-03-20 Lumalampan Ab GAS EMISSIONS LAMP OF METAL TYPE
US4923425A (en) * 1987-06-12 1990-05-08 Gte Products Corporation Fluorescent lamp with a predetermined CRI and method for making
DE3729711A1 (en) * 1987-09-04 1989-03-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh MERCURY LOW PRESSURE DISCHARGE LAMP FOR UV RADIATION
GB8823691D0 (en) * 1988-10-08 1988-11-16 Emi Plc Thorn Aquarium lighting
US5105122A (en) * 1989-08-18 1992-04-14 U.S. Philips Corporation Electrodeless low-pressure mercury vapor discharge lamp
US5051277A (en) * 1990-01-22 1991-09-24 Gte Laboratories Incorporated Method of forming a protective bi-layer coating on phosphore particles
ES2100275T3 (en) * 1992-01-07 1997-06-16 Philips Electronics Nv DISCHARGE LAMP IN LOW PRESSURE MERCURY.
US5714836A (en) * 1992-08-28 1998-02-03 Gte Products Corporation Fluorescent lamp with improved phosphor blend
US6057649A (en) * 1993-05-11 2000-05-02 U.S. Philips Corporation Illumination unit, electrodeless low-pressure discharge lamp, and coil suitable for use therein
GB9310100D0 (en) * 1993-05-17 1993-06-30 Ge Lighting Ltd Fluorescent lamp for use in aquaria
KR0145631B1 (en) * 1993-07-30 1998-08-01 사토 후미오 Luminescent material for mercury discharge lamp including phosphor and a continuous protective layer
US5898265A (en) * 1996-05-31 1999-04-27 Philips Electronics North America Corporation TCLP compliant fluorescent lamp
EP0924746B1 (en) * 1997-12-19 2003-10-08 Koninklijke Philips Electronics N.V. Low-pressure mercury discharge lamp
US6144152A (en) * 1997-12-19 2000-11-07 U.S. Phillips Corporation Luminescent screen for low pressure mercury discharge lamp with specific emission range
JPH11312491A (en) * 1998-04-28 1999-11-09 Matsushita Electron Corp Fluorescent lamp and its manufacture
KR100582333B1 (en) * 1998-11-12 2006-05-23 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Low-pressure mercury vapor discharge lamp
US20020067129A1 (en) * 1999-05-03 2002-06-06 John C. Chamberlain Ferrite core for electrodeless flourescent lamp operating at 50-500 khz

Also Published As

Publication number Publication date
RU2003119071A (en) 2004-12-10
WO2002043107A1 (en) 2002-05-30
AU2002224741A1 (en) 2002-06-03
DE10058852A1 (en) 2002-06-06
ATE367648T1 (en) 2007-08-15
EP1340243B1 (en) 2007-07-18
EP1340243A1 (en) 2003-09-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: LITEC-LLL GMBH, 17489 GREIFSWALD, DE

8327 Change in the person/name/address of the patent owner

Owner name: MERCK PATENT GMBH, 64293 DARMSTADT, DE